Lightron Fiber-Optic Devices069540

Largest holderBNS Partnership19.38%$51M

Filed holders115% or more, plus insiders

Price and institutional trades

1Y 2Y

$2.35+99.7%2Y

JanAprJulOctJanAprJulOct

Holders

$51M · 2026-10-2719.38%

$26M · 2026-02-0511.33%New

$10M · 2025-12-306.65%

$15M · 2026-04-176.33%New

$5.2M · 2025-07-294.20%New

$11M · direct 2.80% · indirect 1.19% · 2026-08-113.99%

Direct2.80%
CSA Cosmic 18.77% → Lightron Fiber-Optic Devices 6.33%1.19%

$5.2M · 2026-01-143.51%−15.94pp

$6.3M · direct 1.78% · indirect 0.81% · 2026-04-242.59%New

Direct1.78%
CSA Cosmic 12.79% → Lightron Fiber-Optic Devices 6.33%

Companies held by Lightron Fiber-Optic Devices

HanWool Semiconductor$7.3M · 2026-03-104.42%Eone Diagnomics Genome Center$3.1M · 2026-07-109.21%

Filings

Filed	Changed	Before → after	Amount	Avg buy price
2026-10-27	-	4.90 → 1.47%	−$11M	-	Filing
2026-10-27	2026-10-27	24.28 → 20.85%	−$11M	-	Filing
2026-10-15	-	9.63 → 4.90%	−$21M	-	Filing
2026-10-15	2026-10-14	29.01 → 24.28%	−$21M	-	Filing
2026-09-04	-

Indirect-only holders

Jiaenbi Partnership$5.0M · indirect1.89%

CSA Cosmic 29.83% → Lightron Fiber-Optic Devices 6.33%1.89%

Deoepeupi Partnership$3.7M · indirect1.40%

CSA Cosmic 22.09% → Lightron Fiber-Optic Devices 6.33%1.40%

thekimspharm$1.5M · indirect0.58%

CSA Cosmic 9.14% → Lightron Fiber-Optic Devices 6.33%0.58%

SW Investment Partnership$1.4M · indirect0.53%

CSA Cosmic 8.42% → Lightron Fiber-Optic Devices 6.33%0.53%

Cho To-ri$1.4M · indirect0.52%

CSA Cosmic 8.19% → Lightron Fiber-Optic Devices 6.33%0.52%

Pantos Holdings$1.1M · indirect0.41%

CSA Cosmic 6.53% → Lightron Fiber-Optic Devices 6.33%0.41%

$1.1M · indirect0.41%

CSA Cosmic 6.40% → Lightron Fiber-Optic Devices 6.33%0.41%

$721K · indirect0.27%

CSA Cosmic 4.29% → Lightron Fiber-Optic Devices 6.33%0.27%

$716K · indirect0.27%

CSA Cosmic 4.26% → Lightron Fiber-Optic Devices 6.33%0.27%

$527K · indirect0.20%

CSA Cosmic 3.14% → Lightron Fiber-Optic Devices 6.33%0.20%

No direct stake in the filings. It may be under 5% or filed before November 2024, so actual holdings may be larger.

Show 3 unchanged reports

Filed	Changed	Holder	Change	Before → after	Amount	Avg buy price
2026-10-08	-	BNS Partnership	Not a trade −0.00pp	29.01 → 29.01%	-	-	Filing
2026-09-17	-	BNS Partnership	Not a trade −0.00pp	29.01 → 29.01%	-	-	Filing
2025-05-28	-	Lightron Holdings	No change	19.97 → 19.97%	−$0	-	Filing

32 in the last 2 years · amount = quantity × price per trade in the last year (closing price where no price is filed), avg buy price = average of buys in that filing · change dates and prices only where the original filing was fetched